Seasonal patterns of depressive symptoms more common in women than men
January 8, 2018, University of Glasgow
Women, but not men, experience seasonal changes in their mood across the year, including more depressive symptoms in winter, a new study from the University of Glasgow has found. These changes appear to be independent of social and lifestyle factors, such as smoking, alcohol use and physical activity.
The research, from the University's Institute of Health and Wellbeing and published in the Journal of Affective Disorders, showed low mood, tiredness and anhedonia (the inability to experience pleasure from activities usually found enjoyable) peaked in the winter months in women. A relationship between shorter days and greater depressive symptoms in women was also found, but this may have been explained by variation in outdoor temperatures.
https://medicalxpress.com/news/2018-01-seasonal-patterns-depressive-symptoms-common.html